Where: Japan (35.3° N, 136.4° E: paleocoordinates 28.9° N, 112.0° E)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Neoalbaillella optima and N. ornithoformis Assemblage Zones of Ishiga (1986) zone, Wuchiapingian to Wuchiapingian (259.9 - 252.2 Ma)
• upper Wuchiapingian-Changhsingian
Environment/lithology: basinal (siliceous); lithified, gray, green chert
Size class: microfossils
Primary reference: K. Kuwahara. 1997. Evolutionary patterns of Late Permian Albaillella (Radiolaria) as seen in bedded chert sections in the Mino Belt, Japan. Marine Micropaleontology 30:65-78 [J. Pálfy/A. Kocsis]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 130475: authorized by József Pálfy, entered by Adam Kocsis on 09.07.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Albaillellaria indet. Deflandre 1953 radiolarian | |
Albaillella "excelsa-lauta Linage group", Albaillella spp., Albaillella triangularis, Neoalbaillella spp., Neoalbaillella gracilis
Albaillella "excelsa-lauta Linage group" Deflandre 1952 radiolarian
Albaillella spp. Deflandre 1952 radiolarian
Albaillella triangularis Ishiga et al. 1982 radiolarian
Neoalbaillella spp. Takemura and Nakaseko 1981 radiolarian
Neoalbaillella gracilis Takemura and Nakaseko 1981 radiolarian | |
"Pseudoalbaillella spp." = Parafollicucullus Holdsworth and Jones 1980 radiolarian
Follicucullus spp. Ormiston and Babcock 1979 radiolarian
Follicucullus japonicus Ishiga 1991 radiolarian |